US Patent No: 5,308,311

Number of patents in Portfolio can not be more than 2000

Electrically heated surgical blade and methods of making

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Abstract

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A hemostatic surgical blade and methods of manufacturing such blades are provided, wherein the blade comprises a laminate region having a hardenable center layer and highly thermally conductive outer layers, joined to a second region of a low thermal conductivity material. A heating element is secured to the laminate region and in thermal communication therewith to thermally reform the collagen of tissue as it is incised. The heat generated by the heating element is conducted to the cutting edge of the blade to maintain the cutting edge temperature within 20.degree. C. to 70.degree. C. of a user-selected operating temperature. The second region reduces the conduction of heat to the handle of the instrument. The heating element comprises a thermally conductive dielectric layer attached to an outer surface of the laminate region, resistive conductive elements deposited on the dielectric, a second dielectric layer covering the resistive conductor elements, and an abherent coating disposed thereon to reduce coagulum buildup on the blade.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
GYRUS ACMI, INC.SOUTHBOROUGH, MA126
GYRUS ENT L.L.C.BARTLETT, TN53
HEMOSTATIC SURGERY CORPORATION, A CAYMAN ISLANDS COMPANYPALO ALTO, CA4

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eggers, Philip E Dublin, OH 269 32212
Shaw, Robert F San Francisco, CA 22 1869

Cited Art Landscape

Patent Info (Count) # Cites Year
 
HEMOSTATIC SURGERY CORPORATION (1)
* 4,848,337 Abherent surgical instrument and method 84 1986
 
HEMOSTATIC SURGERY CORPORATION, A CAYMAN ISLANDS COMPANY (2)
* 4,485,810 Surgical cutting blade 35 1980
* 4,481,057 Cutting device and method of manufacture 59 1981
 
MEGADYNE MEDICAL PRODUCTS, INC. (1)
* 4,785,807 Electrosurgical knife 155 1987
 
ELLMAN INTERNATIONAL, INC. (1)
* 4,754,754 Electrosurgical handpiece for blades and needles 63 1986
 
AMP-AKZO CORPORATION, A CORP. OF DE (1)
* 4,770,067 Method of manufacturing surgical cutting tools for thermally aided surgery 15 1987
 
GYRUS MEDICAL, INC. (2)
* 4,862,890 Electrosurgical spatula blade with ceramic substrate 100 1988
* 4,850,353 Silicon nitride electrosurgical blade 144 1988
 
EVEREST MEDICAL CORPORATION (2)
* 4,802,476 Electro-surgical instrument 99 1987
* 4,958,539 Method of making an electrosurgical spatula blade 79 1989
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
HEMOSTATIX MEDICAL TECHNOLOGIES LLC (2)
* 2009/0112,200 Hemostatic surgical blade, system and method of blade manufacture 31 2007
* 8,475,444 Heated hemostatic surgical blade system and method 0 2012
 
Other [Check patent profile for assignment information] (2)
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* 6,230,603 Cutting blade for resistance-heated elastomer cutters 1 1996
 
BAKERY HOLDINGS LLC (1)
* 6,305,149 Method and apparatus for packaging meat 4 1998
 
DOMAIN SURGICAL, INC. (16)
8,523,850 Method for heating a surgical implement 0 2009
8,523,851 Inductively heated multi-mode ultrasonic surgical tool 0 2009
8,523,852 Thermally adjustable surgical tool system 0 2009
8,506,561 Catheter with inductively heated regions 0 2009
* 8,491,578 Inductively heated multi-mode bipolar surgical tool 5 2009
8,430,870 Inductively heated snare 0 2009
8,419,724 Adjustable ferromagnetic coated conductor thermal surgical tool 0 2009
8,414,569 Method of treatment with multi-mode surgical tool 0 2009
8,377,052 Surgical tool with inductively heated regions 0 2009
8,372,066 Inductively heated multi-mode surgical tool 0 2009
8,292,879 Method of treatment with adjustable ferromagnetic coated conductor thermal surgical tool 0 2009
8,932,279 System and method for cooling of a heated surgical instrument and/or surgical site and treating tissue 0 2012
8,915,909 Impedance matching circuit 0 2012
8,858,544 Surgical instrument guide 0 2012
8,425,503 Adjustable ferromagnetic coated conductor thermal surgical tool 0 2012
8,617,151 System and method of controlling power delivery to a surgical instrument 0 2012
 
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APPLIED MEDICAL RESOURCES CORPORATION (2)
7,909,819 Monopolar electrosurgical return electrode 6 2006
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6,261,311 Method and apparatus for treating intervertebral discs 212 1999
6,517,568 Method and apparatus for treating intervertebral discs 67 2000
6,547,810 Method for treating intervertebral discs 81 2000
6,767,347 Catheter for delivery of energy to a surgical site 68 2001
6,749,605 Catheter for delivery of energy to a surgical site 66 2001
7,069,087 Apparatus and method for accessing and performing a function within an intervertebral disc 41 2001
6,832,997 Electromagnetic energy delivery intervertebral disc treatment devices 35 2001
6,733,496 Intervertebral disc device employing flexible probe 145 2001
6,726,685 Intervertebral disc device employing looped probe 86 2001
6,638,276 Intervertebral disc device employing prebent sheath 71 2001
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7,400,930 Method for treating intervertebral discs 32 2003
7,282,061 Method of treating intervertebral disc 59 2003
7,267,683 Method for treating intervertebral discs 28 2003
7,309,336 Catheter for delivery of energy to a surgical site 30 2004
8,226,697 Method for treating intervertebral disc 0 2007
8,187,312 Method for treating intervertebral disc 0 2007
8,128,619 Method for treating intervertebral discs 0 2007
7,647,123 Method for treating intervertebral discs 16 2007
 
SURGINETICS INC. (8)
8,562,603 Method for conducting electrosurgery with increased crest factor 0 2006
8,357,154 Multielectrode electrosurgical instrument 0 2006
8,357,155 Multielectrode electrosurgical blade 0 2006
7,935,112 Electrosurgical instrument 0 2006
7,935,113 Electrosurgical blade 1 2006
7,896,875 Battery powered electrosurgical system 0 2006
7,867,225 Electrosurgical instrument with needle electrode 0 2006
7,867,226 Electrosurgical needle electrode 0 2006
 
COVIDIEN LP (3)
8,292,888 Bipolar or ultrasonic surgical device 31 2002
8,523,890 Bipolar or ultrasonic surgical device 0 2012
8,845,665 Bipolar or ultrasonic surgical device 0 2013
 
ORATEC INTERVENTIONS, INC. (17)
6,482,204 Method and apparatus for controlled contraction of soft tissue 40 1996
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6,461,353 Orthopedic apparatus for controlled contraction of collagen tissue 8 1997
6,168,593 Electrode for electrosurgical coagulation of tissue 158 1998
* 6,135,999 Concave probe for arthroscopic surgery 151 1998
* 5,954,716 Method for modifying the length of a ligament 215 1998
* 6,007,533 Electrocauterizing tip for orthopedic shave devices 57 1998
* 6,004,320 Clip on electrocauterizing sheath for orthopedic shave devices 47 1998
6,283,960 Apparatus for delivery of energy to a surgical site 87 1998
6,214,001 Electrocauterizing tool for orthopedic shave devices 88 1998
6,176,857 Method and apparatus for applying thermal energy to tissue asymmetrically 109 1998
6,358,273 Soft tissue heating apparatus with independent, cooperative heating sources 33 1999
6,350,262 Method and apparatus for applying thermal energy to tissue asymetrically 120 2000
6,391,028 Probe with distally orientated concave curve for arthroscopic surgery 84 2000
6,645,203 Surgical instrument with off-axis electrode 26 2001
6,695,839 Method and apparatus for treatment of disrupted articular cartilage 39 2001
6,645,204 Intervertebral disc device employing flexible probe 2001
 
MICROLINE SURGICAL, INC. (4)
6,287,305 Electrosurgical instrument 99 1997
6,241,723 Electrosurgical system 211 1999
6,533,781 Electrosurgical instrument 45 2000
7,377,919 Electrosurgical instrument 19 2004
 
ETHICON ENDO-SURGERY, INC. (22)
6,773,409 Surgical system for applying ultrasonic energy to tissue 229 2001
6,929,644 Electrosurgical jaw structure for controlled energy delivery 331 2001
6,913,579 Electrosurgical working end and method for obtaining tissue samples for biopsy 126 2002
7,083,619 Electrosurgical instrument and method of use 241 2002
6,802,843 Electrosurgical working end with resistive gradient electrodes 317 2002
6,926,716 Electrosurgical instrument 345 2002
7,011,657 Jaw structure for electrosurgical instrument and method of use 263 2003
7,112,201 Electrosurgical instrument and method of use 127 2003
7,041,102 Electrosurgical working end with replaceable cartridges 332 2003
6,905,497 Jaw structure for electrosurgical instrument 231 2003
7,070,597 Electrosurgical working end for controlled energy delivery 252 2003
7,087,054 Electrosurgical instrument and method of use 244 2003
7,169,146 Electrosurgical probe and method of use 272 2004
7,189,233 Electrosurgical instrument 117 2004
7,354,440 Electrosurgical instrument and method of use 122 2004
7,309,849 Polymer compositions exhibiting a PTC property and methods of fabrication 99 2004
7,632,269 Electrosurgical instrument with replaceable cartridge 10 2005
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8,075,558 Electrosurgical instrument and method 4 2005
7,381,209 Electrosurgical instrument 103 2007
7,981,113 Electrosurgical instrument 29 2008
 
SUMITOMO RUBBER INDUSTRIES, LTD. (1)
7,449,019 Intervertebral decompression 36 2003
 
OLYMPUS CORPORATION (1)
7,458,969 Therapeutic device for tissue from living body 0 2002
 
Hemostatix Medical Techs, LLC (1)
* 8,142,425 Hemostatic surgical blade, system and method of blade manufacture 5 2007
 
NIKON CORPORATION (1)
* 6,003,419 Microcutting device and incising method 9 1998
 
PALOMAR MEDICAL TECHNOLOGIES, LLC (1)
8,915,948 Method and apparatus for photothermal treatment of tissue at depth 0 2008
 
AMADA SURGICAL, INC. (2)
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WATLOW ELECTRIC MANUFACTURING COMPANY (1)
* 7,304,276 Thick film heater integrated with low temperature components and method of making the same 0 2001
 
Applied Komatsu Technology, Inc. (1)
* 6,191,390 Heating element with a diamond sealing material 2 1999
 
OLYMPUS OPTICAL CO., LTD. (1)
7,329,257 Medical treatment instrument 216 2003
 
CONMED CORPORATION (1)
6,511,479 Electrosurgical blade having directly adhered uniform coating of silicone release material and method of manufacturing same 50 2001
 
SMITH & NEPHEW, INC. (1)
7,150,747 Electrosurgical cutter 37 2003
 
Utah Medical Products, Inc. (2)
* 6,126,656 Electrosurgical cutting device 5 1996
* 5,860,976 Electrosurgical cutting device 171 1997
 
ATRICURE, INC. (4)
6,179,837 Bipolar electrosurgical scissors 328 1995
* 5,766,166 Bipolar Electrosurgical scissors 274 1996
6,464,701 Bipolar electrosurgical scissors 233 2000
6,350,264 Bipolar electrosurgical scissors 253 2000
 
LINVATEC CORPORATION (1)
* 7,244,256 Electrosurgical device with adhesive-free insulating piece and method of making same 5 2004
 
CYNOSURE, INC. (3)
* 5,476,461 Endoscopic light delivery system 25 1994
* 5,700,260 Endoscopic light delivery system 25 1995
9,028,536 Picosecond laser apparatus and methods for its operation and use 0 2009
 
CLINICON CORPORATION (1)
* 6,974,452 Cutting and cauterizing surgical tools 27 2000
* Cited By Examiner